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<a href="/article.html">技术文章</a> > 2025-07-01</div> <div id="0o4f7vl" class="inpage_content"> <div id="0o4f7vl" class="nr_main_box"> <h1 class="inside_rnewtil">直流电阻测试仪接线方法图解：</h1> <div id="0o4f7vl" class="inside_rnewtime">点击次数：546 更新更新时间：2025-07-01</div> <div id="0o4f7vl" class="inside_rnewcon"><p><strong><span style="font-family: 宋体, SimSun; font-size: 16px;">直流电阻测试仪接线方法图解：</span></strong></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">接线原理（四端法/Kelvin接法）?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">直流电阻测试采用?四线制接法?，通过分离电流输出端（C1/C2）和电压采样端（P1/P2），消除引线电阻对测量结果的影响。接线逻辑如下：</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">textCopy Code 电流回路：C1(+) → 被测物 → C2(-) </span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;"> 电压采样：P1(+) → 被测物 → P2(-) </span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?二、接线步骤（以变压器绕组为例）?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?连接测试线到仪器?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">红色线 → P1（+）</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">黑色线 → P2（-）</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">红色线 → C1（+）</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">黑色线 → C2（-）</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?电流端子（粗线）?：</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?电压端子（细线）?：</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?夹持被测绕组?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">电压夹子（P1/P2）尽量靠近绕组端点，电流夹子（C1/C2）在外侧（见示意图）。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">确保夹子与导体接触面清洁，无氧化或油污。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">将?C1（+）与P1（+）夹子?夹在绕组同一端（如变压器A相首端）。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">将?C2（-）与P2（-）夹子?夹在绕组另一端（如变压器A相末端）。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?关键要求?：</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?接线示意图（文字模拟）</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?JY44B直流电阻测试仪接线方法图解（文字描述版）?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?一、接线原理（四端法/Kelvin接法）?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">直流电阻测试采用?四线制接法?，通过分离电流输出端（C1/C2）和电压采样端（P1/P2），消除引线电阻对测量结果的影响。接线逻辑如下：</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">textCopy Code 电流回路：C1(+) → 被测物 → C2(-) </span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;"> 电压采样：P1(+) → 被测物 → P2(-) </span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?二、接线步骤（以变压器绕组为例）?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;"> </span></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img50.chem17.com/9/20250701/638869518815190282645.png" title="2d26d99b-95ef-47a9-9d44-e7d0ab98920d.png" alt="2d26d99b-95ef-47a9-9d44-e7d0ab98920d.png"/></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;"></span><br/></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?连接测试线到仪器?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">红色线 → P1（+）</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">黑色线 → P2（-）</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">红色线 → C1（+）</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">黑色线 → C2（-）</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?电流端子（粗线）?：</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?电压端子（细线）?：</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?夹持被测绕组?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">电压夹子（P1/P2）尽量靠近绕组端点，电流夹子（C1/C2）在外侧（见示意图）。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">确保夹子与导体接触面清洁，无氧化或油污。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">将?C1（+）与P1（+）夹子?夹在绕组同一端（如变压器A相首端）。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">将?C2（-）与P2（-）夹子?夹在绕组另一端（如变压器A相末端）。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?关键要求?：</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?接线示意图（文字模拟）?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">textCopy Code[仪器面板] </span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">C1(+) ---(粗红)---[被测绕组]---(粗黑)--- C2(-) </span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">P1(+) ---(细红)---[被测绕组]---(细黑)--- P2(-) </span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?三、不同被测物的接线变通?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?单相绕组?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">直接按上述四线法夹持绕组两端。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?三相变压器绕组（Y/Δ接法）?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">需短接非被测相，例如测A-B相时，短接B-C和C-A端子。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">测量每相绕组时，需断开中性点连接，单独测试各相（如A-N、B-N、C-N）。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?Y型绕组?：</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?Δ型绕组?：</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?长导线补偿?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">若引线过长（>10米），需在仪器设置中启用“引线补偿"功能，输入导线电阻值以修正结果。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?四、直流电阻测试仪安全与精度注意事项?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?安全操作?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">被测设备必须?断电并放电?（等待5分钟以上）。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">测试后仪器会放电，需等待蜂鸣器停止后再断开测试线。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?避免误差来源?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">禁止将电流线与电压线交叉缠绕，避免磁场干扰。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">分接开关需调至额定档位并确保接触良好（否则会导致开路或电阻异常）。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?异常处理?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">若显示“OL"或“Er"：检查夹子是否接触不良或被测物开路。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">数值波动：排除环境强电磁干扰（如附近运行的大功率设备）。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">?五、操作流程速记?</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">断电 → 放电 → 接线（四线分离） → 开机 → 选档 → 测量 → 记录 → 放电 → 拆线。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">通过规范接线和操作，JY44B可精准测量1μΩ~20kΩ范围内的直流电阻，适用于变压器、电机、电缆等设备的质检与运维。</span></p><p><br/></p></div> <div id="0o4f7vl" 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